Skunk2's Fine Tuning products and accessories, like its Hard Anodized Billet Oil Caps for most Honda and Acura engines, help put the finishing touches onto your vehicle you work so hard to make perform well. Consistent with Skunk2's racing heritage and high - performance parts manufacturing practices, each Hard Anodized Billet Oil Cap is precision CNC machined and features a durable, gun metal finish. Skunk2's Hard Anodized Billet Oil Caps feature a 33mm x 2.8mm thread pitch, are compatible with most Honda valve covers, and feature a contrasting, acid - etched Skunk2 logo for the ultimate finishing touch.